401437 has 4 divisors (see below), whose sum is σ = 403420. Its totient is φ = 399456.

The previous prime is 401417. The next prime is 401473. The reversal of 401437 is 734104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 181476 + 219961 = 426^2 + 469^2 .

It is a cyclic number.

It is not a de Polignac number, because 401437 - 2⁷ = 401309 is a prime.

It is a super-2 number, since 2×401437² = 322303329938, which contains 22 as substring.

It is a Duffinian number.

401437 is a lucky number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648 + ... + 1105.

It is an arithmetic number, because the mean of its divisors is an integer number (100855).

2⁴⁰¹⁴³⁷ is an apocalyptic number.

It is an amenable number.

401437 is a deficient number, since it is larger than the sum of its proper divisors (1983).

401437 is a wasteful number, since it uses less digits than its factorization.

401437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 401437 is about 633.5905617984. The cubic root of 401437 is about 73.7687570791.

It can be divided in two parts, 401 and 437, that added together give a palindrome (838).

The spelling of 401437 in words is "four hundred one thousand, four hundred thirty-seven".